Question

(a-b)(a-b)-(a+b)(a-b)is equal to



plzzz solve it with full process
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Answer 1

Step-by-step explanation:

(a-b) (a-b-a-b)

= -2ab + 2b^2

Answer 2

Answer:

(a-b)(a-b)-(a+b)(a+b) = (a-b)²-(a+b)²

Let (a-b)=A and (a+b) = B

Then, (a-b)²-(a+b)² = A²-B²=(A+B)(A-B) = (a-b+a+b)[a-b-(a+b)]=2a(a-b-a-b)=-4ab

Step-by-step explanation: